Precision Measurements of the Ionization Energy and Its Temperature Variation in High Purity Silicon Radiation Detectors
نویسنده
چکیده
High precision absolute measurements of the ionization energy (e) for alpha particles and electrons have been made in two thick high purity silicon guard ring detectors between 100 K and 250 K. At a fixed energy (E) both Eo and cewere found to vary linearly (r = 0.999) with the band gap (WG). 6cx and Cealso increased with E and Ee# E-a. The slope (^Ca/AWG) = 1.83 + 0.04 is the lowest so far reported and is in closer agreement with Drummond and Moll's theoretical value of 1.73. However (^Ce_/&WG) = 2.87 + 0.07 is significantly higher.
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